Maya is saving money each week. Maya's savings are represented by the equation y=7.50x+3.00. Find the rate of change

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Jonathan can throw a baseball 10 1/3 yards. his brother joey can throw a baseball 13 1/2 yards. how much father can joey throw the ball?

Yolanda wanted to buy a total of 6 pounds of mixed nuts and dried fruit for a party she paid 21.60 for mixed nuts and 11.90 for dried fruit did yolanda but enough mixed nuts and dried fruit for the party